Solar cell edge protection device
By combining a cell travel track and a suction cup device, a servo motor is used to drive continuous dip coating of the cells, solving the problems of low production cycle and poor edge-sealing accuracy in existing technologies, making it suitable for large-scale mass production.
Patent Information
- Application Number
- CN202422890234.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-11-26
AI Technical Summary
Existing edge protection technologies for solar cells suffer from problems such as low production cycle, poor edge-wrapping accuracy, and complex equipment, making it difficult to meet the needs of large-scale mass production.
The system employs a combination of a cell travel track, an edge coating adhesive collection tank, a suction cup guide rail, a suction cup device, an edge coating adhesive pump, and a drive device to achieve continuous dip coating of the cells. A servo motor drives the suction cup device to move and rotate along the track, which in turn moves and rotates the cells, completing the edge coating adhesive wrapping of the four edges and sides.
It achieves high production cycle and high edge-binding accuracy, and the equipment is simple and easy to maintain, making it suitable for large-scale mass production.
Smart Images
Figure CN223626255U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of solar cell wafers, and in particular to a solar cell wafer edge protection device. Background Technology
[0002] Edge protection, an indispensable process in copper interconnect technology for solar cells, is mainly used to prevent short circuits caused by plating on the edges and sides of the cells during the electroplating process.
[0003] Existing edge protection methods typically employ roll coating, dip coating, or spray coating, but these methods suffer from drawbacks such as low production cycle time, poor edge-sealing accuracy, and complex equipment. Currently, there is no edge protection solution that can meet the needs of large-scale mass production of solar cells. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a solar cell edge protection device that enables continuous dip coating of solar cells, and has the advantages of high production cycle, high edge wrapping accuracy, and simple and easy-to-maintain equipment.
[0005] The objective of this utility model can be achieved by adopting the following technical solutions:
[0006] An edge protection device for solar cells includes a cell travel track, an edge-sealing adhesive collection groove, a suction cup guide rail, a suction cup device, multiple edge-sealing adhesive pumps, multiple edge-sealing adhesive overflow grooves, and a driving device. The top surface of the cell travel track has a track groove for defining the cell's travel path. The edge-sealing adhesive collection groove is located outside the cell travel track for collecting and storing edge-sealing adhesive. The suction cup guide rail is located beside the cell travel track and outside the edge-sealing adhesive collection groove. One end of the suction cup device is placed inside the cell travel track. One end is connected to the battery cell, and the other end is slidably disposed in the suction cup guide rail. The driving device is connected to the suction cup device, and the driving device drives the suction cup device to move and rotate along the suction cup guide rail, thereby driving the battery cell to move and rotate along the track groove. The edge-sealing adhesive collection tank is equipped with multiple edge-sealing adhesive pumps, which are used to transport the edge-sealing adhesive in the edge-sealing adhesive collection tank to the track groove of the battery cell travel track. The top surface of the battery cell travel track and the side of the track groove are provided with multiple edge-sealing adhesive overflow grooves, which are used to prevent the edge-sealing adhesive liquid level from exceeding the depth of the track groove of the battery cell travel track.
[0007] Furthermore, the suction cup device includes a suction cup and a connecting rod. The suction cup is attached to the battery cell, one end of the connecting rod is connected to the suction cup, and the other end is connected to the driving device and slidably disposed within the suction cup guide rail.
[0008] Furthermore, the depth of the edge-sealing adhesive overflow groove is 0.01 mm to 1 mm.
[0009] Furthermore, the driving device is a servo motor.
[0010] Furthermore, the edge-sealing adhesive pump is a pump with flow rate adjustment.
[0011] Compared with the prior art, this utility model has the following advantages and beneficial effects:
[0012] The battery cell edge protection device of this utility model has a simple overall structure. The drive device drives the suction cup device to move along the suction cup guide rail and rotates by a set angle when it moves to a set position. This, in turn, drives the battery cell to move along the track groove and rotates by a set angle when it moves to a set position. This achieves dip coating on the four edges and sides of the battery cell within the battery cell's travel track, enabling continuous dip coating operation. Compared with existing roller coating, dip coating, or spray coating solutions, it has advantages such as high production cycle, high edge sealing accuracy, and simple and easy-to-maintain equipment, making it suitable for large-scale mass production. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .
[0014] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.
[0015] Figure 3 for Figure 1 A magnified view of a section at point B.
[0016] Figure 4 This is a schematic diagram of the structure of the present invention. Figure 2 . Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.
[0018] like Figures 1 to 4As shown, this embodiment provides a solar cell edge protection device, including a cell travel track 1, an edge-binding adhesive collection groove 2, a suction cup guide rail 3, a suction cup device 4, multiple edge-binding adhesive pumps 5, multiple edge-binding adhesive overflow grooves 6, and a driving device (not shown in the figure). The top surface of the cell travel track 1 has a track groove 101 for defining the travel path of the cell 7. The edge-binding adhesive collection groove 2 is disposed on the outside of the cell travel track 1 for collecting and storing edge-binding adhesive. The suction cup guide rail 3 is disposed next to the cell travel track 1 and located outside the edge-binding adhesive collection groove 2. One end of the suction cup device 4 is connected to the cell 7 placed in the cell travel track 1, and the other end is slidably disposed on the suction cup guide rail 3. Inside, the drive device is connected to the suction cup device 4. The drive device drives the suction cup device 4 to move along the suction cup guide rail 3 and rotates by a set angle when it moves to a set position. This drives the battery cell 7 to move along the track groove 101 and rotates by a set angle when it moves to a set position, thereby achieving the dipping and coating of the four edges of the battery cell 7. Multiple edge-coating adhesive pumps 5 are provided in the edge-coating adhesive collection tank 2 to transport the edge-coating adhesive in the edge-coating adhesive collection tank 2 to the track groove 101 of the battery cell travel track 1. Multiple edge-coating adhesive overflow grooves 6 are provided on the top surface of the battery cell travel track 1 and next to the track groove 101 to prevent the edge-coating adhesive level from exceeding the depth of the track groove 101 of the battery cell travel track 1, thereby ensuring the edge-coating accuracy.
[0019] Specifically, the suction cup device 4 includes a suction cup 401 and a connecting rod 402. The suction cup 401 is attached to the battery cell 7. One end of the connecting rod 402 is connected to the suction cup 401, and the other end is connected to the driving device and is slidably disposed in the suction cup guide rail 3.
[0020] Specifically, the depth of the edge-sealing adhesive overflow groove 6 is 0.01 mm to 1 mm, which can be adjusted according to actual needs.
[0021] In this embodiment, the driving device is a servo motor. The edge-sealing adhesive pump 5 has a flow rate adjustment function.
[0022] The working process of the battery cell edge protection device in this embodiment is as follows:
[0023] The edge-sealing adhesive in the edge-sealing adhesive collection tank 2 is transported to the track groove 101 of the battery cell travel track 1 by the edge-sealing adhesive pump 5. Excess edge-sealing adhesive overflows through the edge-sealing adhesive overflow groove 6, ensuring that the edge-sealing adhesive is always at the same liquid level and guaranteeing edge-sealing accuracy. The suction cup device 4 adsorbs the battery cell 7 and moves the battery cell 7 along the path of the suction cup guide rail 3, thereby completing the edge-sealing adhesive wrapping of the four edges and sides of a battery cell 7. By following the above operation, the continuous edge-sealing operation of multiple battery cells 7 is completed.
[0024] The above description is only a preferred embodiment of this utility model patent, but the protection scope of this utility model patent is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed in this utility model patent, based on the technical solution and utility model patent concept of this utility model patent, shall fall within the protection scope of this utility model patent.
Claims
1. A solar cell edge protection device, characterized in that: The device includes a cell travel track, an adhesive collection tank, a suction cup guide rail, a suction cup device, multiple adhesive pumps, multiple adhesive overflow channels, and a drive device. The top surface of the cell travel track has a track groove to define the cell's travel path. The adhesive collection tank is located outside the cell travel track for collecting and storing adhesive. The suction cup guide rail is located beside the cell travel track and outside the adhesive collection tank. One end of the suction cup device is connected to a cell placed within the cell travel track. The other end is slidably disposed in the suction cup guide rail. The driving device is connected to the suction cup device, and the driving device drives the suction cup device to move and rotate along the suction cup guide rail, thereby driving the battery cell to move and rotate along the track groove. The edge-sealing adhesive collection tank is provided with multiple edge-sealing adhesive pumps, which are used to transport the edge-sealing adhesive in the edge-sealing adhesive collection tank to the track groove of the battery cell travel track. The top surface of the battery cell travel track and the side of the track groove are provided with multiple edge-sealing adhesive overflow grooves, which are used to prevent the edge-sealing adhesive liquid level from exceeding the depth of the track groove of the battery cell travel track.
2. The solar cell edge protection device according to claim 1, characterized in that: The suction cup device includes a suction cup and a connecting rod. The suction cup is attached to the battery cell. One end of the connecting rod is connected to the suction cup, and the other end is connected to the driving device and is slidably disposed in the suction cup guide rail.
3. The solar cell edge protection device according to claim 1, characterized in that: The depth of the overflow groove for the edge binding adhesive is 0.01 mm to 1 mm.
4. The solar cell edge protection device according to claim 1, characterized in that: The driving device is a servo motor.
5. The solar cell edge protection device according to claim 1, characterized in that: The edge-sealing adhesive pump is a pump with flow rate adjustment.